        <!-- Start tabs -->
        <!--<ul class="tabs">
            <li class="active"><a href="#tab7">Văn bản</a></li>
            <li><a href="#tab1">Toán</a></li>
            <li><a href="#tab2">Greek</a></li>
            <li><a href="#tab3">Relations</a></li>
            <li><a href="#tab4">Logic</a></li>
            <li><a href="#tab5">Ký hiệu</a></li>
            <li><a href="#tab6">Arrows</a></li>
        </ul>-->
        <!-- End tabs -->
        <?php
        $tabEditor = array(
            "Văn Bản" => "inc.classiceditor.php",
            "Công thức Toán" => "inc.matheditor.php",
            "Ký Hiệu" => "inc.symbols.php"
        );
        $tabName = array_keys($tabEditor);
        echo '<ul class="tabs">';
        $i = 1;
        foreach($tabName as $name) {
            echo '<li><a href="#tab'.$i++.'">'.$name.'</a></li>';
        }
        echo '</ul>';
        echo '<div class="tab_container">';
        $tabContent = array_values($tabEditor);
        $i = 1;
        foreach($tabName as $name) {
            echo '<div style="display: none;" id="tab'.$i++.'" class="tab_content">';
            include($tabEditor[$name]);
            echo '</div>';
        }
        echo '</div>'
        ?>
        <!-- Between the math menu and the button bar -->
        <div class="clear"></div>
